Hemming attachment for sewing-machines.



. W. NICHOLSON.v HBMMING ATTACHMENT TOR SEWING MACHINES.

APPLICATION FILED MAB.. 27, 1912.

Patented Nov. 1251.912.

w/ TNEssEs ATOHNEYS Taff l y NTED STATE WILLIAM NICHOLSON. 03? SAN FRANCISCG, CALIFGRNIA.

HEMMING ATTACHMENT Fon SEWINGJJLACHINES.

" Lonato.

.fa eitizen ot tlle llnited States. and a resi- -dent ot' San Fralleisem in tlle eonnt;Y ol San 5 .Franeiseo and State ot talitornia. llave illrented a' new and lnlprored llenlnling ttaellnlent t'or Sewing'-Maellines. ot wlliell `tlle following is a full. elear. and eXaet deseription. 'l`lle ollj'eet ot tlle invention is to provide a 'new alld ilnprored llenlllling attaellnlent ,tor sewing nlaellines. arranged to pernlit ot :.aeenrately passing tlle nlaterial tllrongll tlle 4seroll to insnre tlle proper formation ol tlle llenl eren it' tlle nlaterial provided wit'll erom seams or `otller tllieltened portioln. f For tlle pnl-pose nlen'tioned use is nlade ot 'fa .st-roll hal-ing a yieldingl rootI portion and f :r yielding portion on tlle turn-under. plate so tllat tllesaid partal yield on passing a tlliek eross seanl or otller tlliekened lllat'erial tllrongfll tlle lel-oil.

A praetieal enlllodinlent olA tlle invention :is represented ill tlle aeeonlpanying' draw- Hille 't'ornlinjg a part ot tlli lapeeitit-ation. ill

\\'lliell similar ellaraeterI ol relierenee indieate eorrwprindin.;r parts in all tlle View l `il1nre-l is a plan View ot' tlle llenlnling attaellnlent: Fig.y Q is a trl' tlle lalne on tlle lille 2MB ol' Fig. l: Fig. Il is a' similar riew'o'tl tlle saine \\'itll tlle wielding' root' portion ill raised position: Figi". -l Vis'fa rrr-tional side elevation oll tlle flie'fllllling attaellnlent on tlle lille Ll--l ol l"i`.4 l: Fin', fl is a Iaeetiollal plan View otI tlle ywille on tlle line Tr- 5 ot' Vig'. l and Figi.

"itl is an enlarged eroxs seetion ot'itlle sanle on tlle lille t3 ot Fig. l.

Amel-oil is' loldered or otherwise tastened to all upright tlangre Il ol an attaelliilpjarnl l adapted to lle fastened to tlle elringi -nlaellille taille ill tlle nsnal n'lanner. ".lllel leroll A\ terlllirlatine in an npwaridllr and ill 'ardl'v enrred side l) leading to tlle rootl ll and terminating in a tnrn-nlldel plate l" intermediate tlle top ot tlle root ll and tlle llottonl plate to tllrll under tlle raw edge ot tlle l'allrie material as tlle latter ia drawn tllrongll tlle seroll A. i

tranarerse set-tion ronsistA ol a llottonl plate Specification of Letters Patent.

Application tiled March 27'. 1912.

ltis understood tllatl tlle stroll A is pro-vided with tlle nsnal l'lari ing .n'lolrtll 'lor tlle eonrenientl entranee ot tlle tallrle, material. and tlle Scroll A tapers rearlvardlyv to nlsnre a proper tnrnlngover of tlm-material With a view to fol-nl a llem l adapted to lle solved ill `le lt. known tllat' l, Vilnlilllnr Nlerrolox,

` portion plaee 'or tlle Sewing' needle ol* tlle nlaelline. lrlliell is loeated :ldjaeent to tlle disellarge or slnall end ot tlle seloll lrllen tlle llenln'ling attaellnlent in in poSition on tlle sewing nlaelline tallle.

Tlle root E of tlle .ar-roll A llaS its rear portion E Separate tronl tlle tlollt portion. and tlle said `Qeparate rear portion E in Seenred on top to one end ot a spring` (l Vtastened at it@y otller end to tlle forward or entranee parl ot tlle root to allow tlle said root portion li to Yield in all np alld down direetioll so as to readil)7 aeeonlnlodate eroga1 Seanle and otller tllieltened portiona ot tlle material lrllell tlle latter is drawn tlllongll tlle seroll. The upward swinging lllorelllellt ot tlle ser'oll (l is linlited lly a Set Screw l'l eerewine ill a bracket l attaelled to tlle attaellinlgr arlll l.

Tile turn-onder plate l" ia prorided lritll a .feparate portion or a Seetion F extending' into tlle sel-oil at tlle diaellarlee end tllereot direetly nllder tlle Separate yielding root" ii'. and tlle Said pol-tion l" is nlade ot a Iaillgl'le lenetil to extend onder tlle plate lt1 and is pil'otallvl' eonlleeted to tlle laanle at tlle trent elld tllereo;F lnv a rertieal pivot lF2 so as to allolr tlle y#aid plate portion F to wing sidell'ise to aeeonlnlodate eros@ Seallls or otllertllieltened material vat. tlle tillle tlle IQanre pass tllrongll tlle serol-l at tl'le`di. ellarge end tllereot. )formally tlle plate portion l'V iS lleld ill all inner position llv tlle aetiono't a llolr spring` fl iQeenled at one end toa lne' F extending' upwardly trolll tlle plate portion lV on tlle outside ot tlle yielding' roo-t pol-tion l'. and tlle ot'ller end ott tlle prinej l is attaelled to tlle attaelling arnl il to exert an inward preaanre againsttlle lng it and eons'eqnentlrv against tlle plate portion lt". rl`lle plate portion l?f is tnrtller provided lrit'll a Stop'lng l?" adjaeent tlle llrL- F and adapted to allnt, againat. tlle onter Side of tlle yielding'` root portion lll to linlit' tlle inward lllorenlent of tlle plate portion F. rllle outer edge ot tlle lvieldinglF root portion l extends in elose proxinlitj7 to tlle top ot' tlle rieldingr platel `portion lt" and tlle inner edge lQ o't tlle lOl titl

It is expressly understood that the roof portion E forms a yielding continuation of the roof E, and the plate portion F forms an extension of the fixed turn-under plate F, and the said parts are so arranged to readily yield with a View to allow the ready passage of a cross seam or other thickened gortion of the material while the latter is l ,rawn through the scroll to form a hem in the usual manner.

The hemming attachment shown and described is very vsimple and durable in eonstruction and can be readily applied to sewing machines in place of the-ordinary hemmers now generally' used.

Having thus described my invent-ion, l claim as new and desire to secure. by Letters Patent:

l. A hemmer for sewing machines provided with a scroll having its roof made in sections comprising a large end section and a small end section, and a spring connecting the sections with. each other to allow the small end section to yield in an np and down direction and means for limiting the up ward swinging movement of said section.

2. A hammer .tor sewing machines provided with a scroll having its roof made in sections, comprising a large end section and a small end' section and a spring connecting the roof sections with each other at the top thereof to allow the small end section to yield in an up and down direction, the bot tom of the scroll having an nptnrned flange at the small end and the said small end root section being extended downward at the side to overlap the said flange. i

3. A heminer for sewing vmachines provided with an attachingarm having an upright flange, a sc oll fastened to said flange and having its roof divided into a large end section and a small end section, and a spring connecting the sections with each other to allow the small end section to yield in an np and down direction, the bottom of' the scroll having an, npturned llange at the small end, and the said small end roof section being extended downward at. the side between the said upturned Aflange and the upright flange of the attaching arm.

4l. A hemm'er for sewing machines provided with an attaching arin, a scroll fixed on thesaid attaching arm and having a hot tom plate, a roof and a turn-under plate, the said roof having a small end portion and a large end portion, the small lend portion being separated from the large end portion, a lat spring connecting the separated sections of the roo'f together to allow the small end section to yield in an np and down direction. a bracket on the attaching arm and a set screw carried the said bracket for' engagement by the said spring.

d il. herinner ttor sewing machines prowith a 'scroll having turnaindcr plate extending intermediate the roof and the bottom of the scroll, a section comprising' g plate pivoted to the underside of the turn-underplate at the entrance end of the scroll and extcndin along the under side of said turn-under plgiite to th. dischar 1 e end of the scroll, the said section being a apted to swing'sidewisc, and a spring pressing the said section inward.

6. A herinner' for sewing machines provided with a scroll having a turn-under plate extending intermediate the roof and the bottom of the scroll, a section com rising a plate pivoted to the under side o the turn-under plate at the entrance end of the scroll to allow the said section to swing sidewise, the said pivoted section extending into the scroll at the discharge end, a spring for normally holding 'thc said section in an inner position, and means for limiting the inward movement of said section.

7. A. hemmler for sewing machines rovided with an attaching arm, a scrollhxed on the said attaching arm and having a bottom plate, a roof, and a turn-under plate, the said turn-under plate having a plate section pivotally connected thereto, and a spring attached to the said attaching arm and connected with the said plate section to allow the latter to yield laterally,

8. A hemmer for sewing machines rovided with an attaching arm, a scroll xed on the said attaching arm and having a bottom plate, rcof and turn-imdcr plate, the said roof having a separated forward scction, a fiat spring connecting the roof and its forward section with each other to allow the said section to yield in an up and down direction, the said turn-under plate having a forward section pivotally connected with the plate to swing sidewise, and a how spring attached to the said attaching arm and connected with the said platesection to allow the latter to yield laterally.

9. A hemmer for sowing machines' provided with an attaching arm, a scroll fixed on the said attaching arm and having a bottoni plate. roof and turn'nndcr plate, the said roof having a separated forward section, a llat spring connecting the roof and its forward section with cach other to allow the said section`to yield in an up and down di. rection, the said turn-luider plate having a forward section pivotally connected with the plate lo swing sidewse, a how spring attached to the said attaching arm and connected with the said plate section to allow the latter to yield laterally, and a stop for limiting the inward swinging motion of.n the said plate section.

l0. A hemmer for sewing machines provided with an attaching arm, a scroll fixed on the said attaching arm and having a hottom plate, roof and tnrnfnnder plate, thc said roof hzjtving a separated 'forward section, a at sprng connecting the 'oof m ts forward section with @ach other to allow the said section to yied in an up and dmvn drecton, the said turn-under pinta hating a forward section pvotzty feonnccted *ith the plate to swing sdewise, a bow spying attached to the said attaching arm am? sonnected with 4the said plate section 'fo almv thel latte? t0 yed laterally, a bracket the 10 attaching a'm, yMld a set screw in th@ said Ira '1e tis tins speccaton inthe presence' 0f two subscnbmowitnesses.

t; WILLIAM NICHOLSON. Wtneses ARTHUR ELC-ESSEX, MATEHEW t) NGER. 

